The high-quality residential project is developed on a 15126 m² site with a remarkable existing tree population in one of the most distinguished areas of Vienna. One restored historical, and three new buildings planned by Dietrich & Untertrifaller are embedded in a partly classical, partly modern park. Based on the idea of a cloud landscape, evergreen volumes of coniferous plants and shrubs pervade the park, creating variously usable shared and private spaces that strongly correlate with the architectural space program. The creative and intense use of plants and trees mediate a nature-orientated sence of comfort and security in an urban environment.